package collectionhomework;

import java.util.ArrayList;
import java.util.Collection;

/**
 * 演示contains()和delete()方法
 */
public class CollectionDemo2 {
    public static void main(String[] args) {
        Collection c=new ArrayList();
        c.add(new Point(1,2));
        c.add(new Point(3,4));
        c.add(new Point(5,6));
        c.add(new Point(7,8));
        c.add(new Point(9,10));
        boolean b=c.add(new Point(1,1));
        System.out.println(b);
        System.out.println(c);
        Point p=new Point(1,2);
        boolean contains=c.contains(p);
        System.out.println("是否包含:"+contains);
        /**
         boolean remove(Object o):------一般都不接收boolean结果
         从当前集合中删除与给定元素o的eauals()比较为true的元素
         若存在重复元素则只删除第1次匹配的
         */
        boolean remove =c.remove(p);
        System.out.println("删除结果:"+remove);
        System.out.println(c);
    }
}
